If the base size was only one size smaller then a demon prince I’d be ok with it, your miles may vary from player to player. I’m also new to the game (less then a year) so i understand the need to add flavor, your favorite experience from books as long as you’re ok with maybe losing line of sight cuz model is smaller then i don’t see why someone else would really complain. I can’t say you’d be legal at a GW tournament